Sir Pentious, Machine Master

Haste.
Whenever Sir Pentious attacks you may pay {u/r} if you do create a 0/0 Invention artifact with your choice of flying, range or haste then put a number of +1/+1 counters equal to the number of artifacts that you control. If it has haste put it into the battlefield under your control tapped and attacking.
Artifacts you control have +1/+1